Group to test new sand package at Magdalena discovery

A group led by Petrodorado Energy Ltd., Calgary, will test a thick new sand-prone package at the Dorados-1X indicated discovery on the Talora block in Colombia’s Upper Magdalena Valley.

Dorados-1X reached a final depth of 7,282 ft, about 2,200 ft above the originally planned total depth. Petrodorado drilled 600 ft below the 6,685-ft depth reported on Sept. 25. Some 400 ft was similar to the sand-prone section previously reported. As the remaining 200 ft was considered to be in “economic basement” (possibly the Jurassic Giron formation), drilling was halted.

Participant Sintana Energy Inc., Plano, Tex., previously reported that the well had encountered an extensive interval of a new Cretaceous sandstone, Cenomanian in age and therefore younger than the original Tetuan and Caballos objectives. It is evident that these thick, quartz-rich Cenomanian sands, which appear to be thicker than the standard plays in the area and have superior petrophysical characteristics, define a new exploration play, Sintana Energy said.

The new sand-prone package measures in excess of 1,700 ft of gross sandstone section, the lowest segments of which may be Cretaceous Albian in age. The hydrocarbon-bearing characteristics of these sandstones remain the same as previously reported with 876 ft of excellent wet gas shows between 5,160 ft and 6,036 ft as defined by gas chromatography and mass spectroscopy and an estimated 316 ft of oil shows based on the mud logs between 5,720 ft and 6,036 ft.

Below 6,036 ft the well appears to be water wet based on a drop in shows and petrophysical analysis. This is taken to simply represent a normal water line for this particular structure or structural compartment, Sintana Energy said.

With a possible hydrocarbon column of more than 800 ft, the Dorados-1X discovery interval would be exceeded only that at Guando field 40 km southeast with an original gas and oil column of more than 2,100 ft.

Sintana Energy said, “The key conclusion thus far from drilling results of the Dorados-1X exploration well is the presence of a younger Cenomanian sand sequence that appears to represent a thicker and better quality reservoir than the typical Tetuan and Caballos found in this area of the Upper Magdalena basin.”

Sintana Energy’s fundamental technical strategy is to identify well-defined thrust anticlines in areas of mature and abundant source rock section--prospects such as Dorados--such that the only remaining geologic risk is reservoir quality. Seals are excellent.

The company’s exploration concept in the northern basin area is to discover new or overlooked fluvial and paralic sand systems within the Middle and Lower Cretaceous sections where exploration and deeper drilling have been largely absent.

The forward plan for Dorados-1X is to flow-test six Cenomanian sandstone intervals. Both fractures and matrix porosity reservoir mechanisms will be evaluated.

The testing program is being designed to adhere to strict efficiency guidelines in order to contain costs and ensure that each test interval will depend on the favorable flow characteristics of the preceding tests. Petrodorado will use a low-cost rig and anticipates that testing will commence by mid-November.

Doug Manner, Sintana Energy chief executive officer, said, “Given the dimensions of these multiple sand sections, and their mineral assemblages, our technical view is that they are likely to have considerable areal extent. Not surprisingly, the partnership’s testing and exploration efforts have shifted to these younger sands.

“In parallel with the evaluation of this discovery we will continue our hunt for the Tetuan shales and carbonates and Caballos sandstones in other wells, such as in the nearby Verdal-1 well (drilled in 2010).”

Sintana Energy has an undivided 30% private participation interest in the 58,570-acre Talora block. Talora is 60 km west of Bogota and adjacent to the region’s main oil and gas pipelines.

Related Articles

Tullow Oil provides production update on Jubilee, other fields

07/01/2015 Tullow Oil PLC reported that gross production for the Jubilee field offshore Ghana averaged 105,000 b/d in this year’s first half, up from 102,000 ...

OGJ Newsletter

06/29/2015

Security through change

06/29/2015

At the start of this month the US Army published its "Energy Security & Sustainability (ES2) Strategy" report. 

Mubadala starts production at Nong Yao in Gulf of Thailand

06/29/2015 Mubadala Petroleum, Abu Dhabi, started production on June 17 from its Nong Yao oil field in the G11/48 concession of the southern Gulf of Thailand.

Junex provides update on Galt oil property drilling

06/26/2015 Junex Inc., Quebec City, Que., said it is finalizing construction of the surface drilling pad for the Junex Galt No. 5 horizontal well that the com...

Lundin spuds three wells offshore Norway

06/24/2015 Lundin Norway AS, a wholly owned subsidiary of Lundin Petroleum AB, spudded three wells: its second Alta appraisal well in the Barents Sea, an appr...

WPX Energy adds to acreage in Gallup oil play

06/22/2015 WPX Energy Inc., Tulsa, has added to its San Juan Gallup acreage in New Mexico with the purchase of another 14,300 net acres from an undisclosed se...

YPFB Andina makes oil discovery in Bolivia’s Boqueron field

06/22/2015 YPFB Andina reported an oil discovery in Boqueron field in Bolivia’s Santa Cruz region. The Boqueron 4D well reached a total depth of 3,237 m and h...

US crude export debate increasingly geopolitical, EIA conference told

06/22/2015 The ongoing debate over whether more US crude oil exports should be authorized has more in common with conditions in the 1980s when supplies were a...
White Papers

2015 Global Engineering Information Management Solutions Competitive Strategy Innovation and Leadership Award

The Frost & Sullivan Best Practices Awards recognise companies in a variety of regional and global...
Sponsored by

Three Tips to Improve Safety in the Oil Field

Working oil fields will always be tough work with inherent risks. There’s no getting around that. Ther...
Sponsored by

Pipeline Integrity: Best Practices to Prevent, Detect, and Mitigate Commodity Releases

Commodity releases can have catastrophic consequences, so ensuring pipeline integrity is crucial for p...
Sponsored by

AVEVA’s Digital Asset Approach - Defining a new era of collaboration in capital projects and asset operations

There is constant, intensive change in the capital projects and asset life cycle management. New chall...
Sponsored by

Transforming the Oil and Gas Industry with EPPM

With budgets in the billions, timelines spanning years, and life cycles extending over decades, oil an...
Sponsored by

Asset Decommissioning in Oil & Gas: Transforming Business

Asset intensive organizations like Oil and Gas have their own industry specific challenges when it com...
Sponsored by

Squeezing the Green: How to Cut Petroleum Downstream Costs and Optimize Processing Efficiencies with Enterprise Project Portfolio Management Solutions

As the downstream petroleum industry grapples with change in every sector and at every level, includin...
Sponsored by

7 Steps to Improve Oil & Gas Asset Decommissioning

Global competition and volatile markets are creating a challenging business climate for project based ...
Sponsored by
Available Webcasts


OGJ's Midyear Forecast 2015

When Fri, Jul 10, 2015

This webcast is to be presented by OGJ Editor Bob Tippee and Senior Economic Editor Conglin Xu.  They will summarize the Midyear Forecast projections in key categories, note important changes from January’s forecasts, and examine reasons for the adjustments.

register:WEBCAST


Predictive Analytics in your digital oilfield - Optimize Production Yield and Reduce Operational Costs

When Tue, Jul 7, 2015

Putting predictive analytics to work in your oilfield can help you anticipate failures, plan and schedule work in advance, eliminate emergency work and catastrophic failures, and at the same time you can optimize working capital and improve resource utilization.  When you apply analytic capabilities to critical production assets it is possible to reduce non-productive time and increase your yield.

Learn how IBM's analytics capabilities can be applied to critical production assets with the goal of reducing non-productive time, increasing yield and reducing operations costs.

register:WEBCAST



On Demand

Cognitive Solutions for Upstream Oil and Gas

Fri, Jun 12, 2015

The oil & gas sector is under pressure on all sides. Reserves are limited and it’s becoming increasingly expensive to find and extract new resources. Margins are already being squeezed in an industry where one wrong decision can cost millions. Analyzing data used in energy exploration can save millions of dollars as we develop ways to predict where and how to extract the world’s massive energy reserves.

This session with IBM Subject Matter Experts will discuss how IBM Cognitive Solutions contribute to the oil and gas industry using predictive analytics and cognitive computing, as well as real time streaming for exploration and drilling.

register:WEBCAST


The Alternative Fuel Movement: Four Need-to-Know Excise Tax Complexities

Thu, Jun 4, 2015

Discussion on how to approach, and ultimately embrace, the alternative fuel market by pulling back the veil on excise tax complexities. Taxes may be an aggravating part of daily operations, but their accuracy is crucial in your path towards business success.

register:WEBCAST


Emerson Micro Motion Videos

Careers at TOTAL

Careers at TOTAL - Videos

More than 600 job openings are now online, watch videos and learn more!

 

Click Here to Watch

Other Oil & Gas Industry Jobs

Search More Job Listings >>
Stay Connected